Hi,
I bought the FX Impact in .22 cal. (serial # 181353) from PbDionisio, an authorized local dealer/distributor here in the Phillipines last February 2018. I set the regulator to 147 bars, the valve stem adjustment set at line 4 (4 lines exposed), Power Adjuster Wheel at Max, and at this setting the gun was very accurate and consistent with the 18gr. JSB Exact Jumbo Heavy, with an average muzzle velocity of about 941 fps. From 240bars down to 150 bars I get over a hundred shots. I have been using my Impact for 8 months now and shot a few thousand rounds of pellets through it. The gun is ALWAYS well maintained and is only used on my benchrest. A few weeks ago, as I was using it, the muzzle velocity dropped to less than 400fps. The tank manometer had more than 200bars, the regulator manometer was still set to 147bars, barrel was clean with no obstructions, the gun was cocking and firing smoothly but no power... I brought it back to the dealer, PbDionisio and left it with them. I got the gun back a couple of weeks ago. At first it was working fine but when I adjusted the valve stem it lost power again. Now its worse, it would fire erratically, at 950fps, next shot 340fps, next at 510fps, then back to 908fps, and sometimes to over 1,400fps. The gun is now very inconsistent. The dealer obviously has no training for support, relying heavily on previous experience with other guns nor do they have any spare parts for the FX airguns. I am very disgrunted with the local support. Please help me.
Thank You In Advance,
Alberto